Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)
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ÇѱÛÁ¦¸ñ(Korean Title) |
Ç׸ñ Àα⵵ ÆíÇâ °üÁ¡¿¡¼ÀÇ ÀâÀ½Á¦°Å ¿ÀÅäÀÎÄÚ´õÀÇ È¿°ú |
¿µ¹®Á¦¸ñ(English Title) |
Effect of Denoising Autoencoder in the view of Item Popularity Bias |
ÀúÀÚ(Author) |
¹ÚÁø¿µ
¿ÀÇý¿¬
JinYeong Bak
Alice Oh
±èÁøÈ«
ÀÌÀç¿õ
ÀÌÁ¾¿í
Jinhong Kim
Jae-woong Lee
Jongwuk Lee
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¿ø¹®¼ö·Ïó(Citation) |
VOL 48 NO. 05 PP. 0575 ~ 0583 (2021. 05) |
Çѱ۳»¿ë (Korean Abstract) |
ÀâÀ½Á¦°Å ¿ÀÅäÀÎÄÚ´õ´Â Ãßõ ½Ã½ºÅÛ¿¡¼ ÃÖ±Ù ÈçÈ÷ »ç¿ëµÇ°í ÀÖ´Â ¸ðµ¨ÀÌ´Ù. ÀÌ ¸ðµ¨Àº ÀԷ¿¡ ÀâÀ½À» ÁÖ¾î ÇнÀ½ÃÅ°´Â ¿ÀÅäÀÎÄÚ´õÀÇ ½Å°æ¸Á ±â¹Ý Ãßõ ¸ðµ¨·Î ¿ÀÅäÀÎÄÚ´õ¿¡ ºñÇØ ³ôÀº Á¤È®µµ¸¦ º¸ÀδÙ. º» ³í¹®¿¡¼´Â ÀâÀ½Á¦°Å ¿ÀÅäÀÎÄÚ´õÀÇ ÇнÀ °úÁ¤À» ÀÌÇØÇϱâ À§Çؼ, Ç׸ñÀÇ Àα⵵ ÆíÇâ °üÁ¡¿¡¼ ÀâÀ½ÀÇ È¿°ú¸¦ ºÐ¼®ÇÑ´Ù. ºÐ¼®À» À§ÇØ ¿ì¸®´Â ´ÙÀ½ÀÇ µÎ °¡Áö ¹æ¹ýÀ¸·Î ½ÇÇèÀ» ¼³°èÇÑ´Ù. ¿ì¼±, ¿ÀÅäÀÎÄÚ´õ¿¡ ÀâÀ½À» ÁÖ´Â ¹æ¹ýÀ¸·Î ÇнÀµÈ Ç׸ñ º¤ÅÍÀÇ L2 ³ë¸§(L2-norm)ÀÇ º¯È¸¦ °üÂûÇÑ´Ù. ´ÙÀ½À¸·Î´Â, Ç׸ñÀÇ Àα⵵¿¡ ÀÇÇØ ÀÏÂ÷ÀûÀ¸·Î ÃßÃâµÈ Ç׸ñ¿¡¸¸ ÀâÀ½À» ÁÖ´Â ¹æ¹ýÀ» ÅëÇØ, ÀâÀ½Á¦°Å ¿ÀÅäÀÎÄÚ´õÀÇ ¼º´É Çâ»ó È¿°ú¿Í Ç׸ñÀÇ Àα⵵°£ °ü·Ã¼ºÀ» ºÐ¼®ÇÑ´Ù. ½ÇÇè°á°ú¸¦ ÅëÇØ Àα⵵¿¡ ÀÇÇØ »ý±ä Ç׸ñ º¤ÅÍ ³ë¸§ÀÇ ºÐ»êÀÇ Å©±â°¡ ÀâÀ½¿¡ ÀÇÇØ ÁÙ¾îµå´Â °ÍÀ» È®ÀÎÇÏ¿´À¸¸ç, ¶ÇÇÑ Àα⵵°¡ ³ôÀº Ç׸ñ¿¡ ÀâÀ½À» ÁÙ ¶§ Á¤È®µµ Çâ»ó¿¡ µµ¿òÀÌ µÇ´Â °ÍÀ» È®ÀÎÇÏ¿´´Ù.
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¿µ¹®³»¿ë (English Abstract) |
Denoising autoencoder (DAE) is commonly used in recent recommendation systems. It is a type of Autoencoder that trains by giving noise to the input and has shown improved performance compared to autoencoder. In this paper, we analyze the effect of noise in terms of item popularity to interpret the training of DAE. For analysis, we design the experiment in the following two ways. First, we observe the changes of the learned item vector¡¯s L2-norm by giving noise to the autoencoder. Second, by giving noise only to presampled items by popularity, we anlayze whether the improved performance of the DAE is related to item popularity. Results of the experiment showed that the variance of the item vector norm caused by popularity was reduced by noise, and that the accuracy increased when noise was given to the popular items.
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Å°¿öµå(Keyword) |
ºÐ·ù
¸®´õ½Ê
RNN
BERT
Á¶¼±¿ÕÁ¶½Ç·Ï
classification
leadership
annals of the Joseon dynasty
ÀâÀ½Á¦°Å ¿ÀÅäÀÎÄÚ´õ
Çù¾÷ ÇÊÅ͸µ
ȗˤ-N ̵̧
Ç׸ñ Àα⵵
denoising autoencoder
collaborative filtering
top-N recommendation
item popularity
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ÆÄÀÏ÷ºÎ |
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